Information Retrieval (IR) is the discipline that deals with retrieval of unstructured data, especially textual documents, in response to a query or topic statement, which may itself be unstructured, e.g., a sentence or even another document, or which may be structured, e.g., a boolean expression. The need for effective methods of automated IR has grown in importance because of the tremendous explosion in the amount of unstructured data, both internal, corporate document collections, and the... Topics: Information Retrieval, "
byBrown-Sica, Margaret S.; Beall, Jeffrey; McHale, Nina
Response time as defined for this study is the time that it takes for all files that constitute a single webpage to travel across the Internet from a Web server to the end user's browser. In this study, the authors tested response times on queries for identical items in five different library catalogs, one of them a next-generation(NextGen) catalog. The authors also discuss acceptable response time and how it may affect the discovery process. They suggest that librarians and vendors should... Topics: online library catalogs, information retrieval, internet searching Source: Information Technology and Libraries 29 no4 214-23 D 2010
With growing amounts of research data it becomes increasingly difficult to handle and maintain them and also get an overview over their structure. When a research project has been going for some years, various types of materials have been collected and stored in various ways and at different places. The purpose of this document is to describe how the body of records of a research project at a Swedish research department during the years 1972-1977 has been organized for the archives. The data... Topics: data filing, information storage, information retrieval, documentation
byMeghana Raut, Nityaspandana Nalamari, Darshana Rane
Measuring the semantic similarity between words is an important component in various tasks on the web such as relationextraction, document clustering, and automatic metadata extraction. Despite the usefulness of semantic similarity measures in theseapplications, accurately measuring semantic similarity between two words (or entities) is still difficult. We propose a method to estimatesemantic similarity using page counts and text snippets retrieved from a web search engine for two words.... Topics: web mining, information retrieval, page counts, snippets
This report is part of a project on content analysis and deals with dictionary construction as basis for statistical analyses of interviews. The generation of lexical data bases consisting of nouns, adjectives and verbs is described and results from experimentation on authentic materials are accounted for. Dictionaries of scaled base forms of adjectives and verbs are compared with truncated items. The purpose is to obtain a perfect match, so that the results can be assigned a scale value for... Topics: content analysis, dictionary, data processing, information retrieval
Book from Project Gutenberg: Zen and the Art of the Internet Library of Congress Classification: TK Topics: Computer networks, Information networks, Information retrieval, Internet Source: http://www.gutenberg.org/ebooks/34
The retrieval decision problem is considered from the viewpoint of a decision theory approach. A threshold rule based on earlier rules for indexing decisions is considered and analyzed for retrieval decisions as a measure of retrieval performance. The threshold rule is seen as a good descriptive design measure of what a reasonable retrieval system should be able to do. A retrieval mechanism of randomly drawing documents is analyzed to determine the relative strength of the threshold rule. The... Topics: ERIC Archive, Indexing, Information Retrieval, Information Science, Information Systems,...
Talk by Dr. George Tzanetakis given on June 9, 2011 at Facebook about music information retrieval and content-based music browsing interfaces. Topics: music information retrieval, visualization, audio signal processing, machine learning
With the explosive growth of international users, distributed information and the number of linguistic resources, accessible throughout the World Wide Web, information retrieval has become crucial for users to find, retrieve and understand relevant information, in any language and form. Cross- Language Information Retrieval (CLIR) is a subfield of Information Retrieval which provides a query in one language and searches document collections in one or many languages but it also has a specific... Topics: Cross Lingual Information Retrieval, Heuristic Method, Text Categorization
This custom bibliography from the NASA Scientific and Technical Information Program lists a sampling of records found in the NASA Aeronautics and Space Database. The scope of this topic includes technologies for the space suit of the future, specifically for productive work on planetary surfaces. This area of focus is one of the enabling technologies as defined by NASA s Report of the President s Commission on Implementation of United States Space Exploration Policy, published in June 2004. Topics: SAFETY FACTORS, SAFETY MANAGEMENT, DATA ACQUISITION, NUMERICAL ANALYSIS, INFORMATION RETRIEVAL
Extensions are required to the currently operational INGRES data base system for it to manage a data base distributed over multiple machines in a computer network running the UNIX operating system. Three possible user views include: (1) each relation in a unique machine, (2) a user interaction with the data base which can only span relations at a single site, and (3) a user interaction with the data base having neither of these restrictions. The extensions present four categories of problems to... Topics: ERIC Archive, Computer Science, Computers, Databases, Information Retrieval, Information Storage
This fact sheet offers basic instructions on connecting to the ERIC database for individuals who own or have access to a microcomputer and are familiar with ERIC and how to search it through a database terminal. Software, hardware, and telephone line components necesary to make a microcomputer act as a database terminal are outlined. The discussion of software describes the need for a terminal emulator and lists desirable features for terminal software, including the capabilities to print and... Topics: ERIC Archive, Computer Software, Databases, Information Retrieval, Microcomputers,...
Polycrystalline CuInS2 films were deposited by aerosol-assisted chemical vapor deposition using both solid and liquid ternary single-source precursors (SSPs) which were prepared in-house. Films with either (112) or (204/220) preferred orientation, had a chalcopyrite structure, and (112)-oriented films contained more copper than (204/220)-oriented films. The preferred orientation of the film is likely related to the decomposition and reaction kinetics associated with the molecular structure of... Topics: INFORMATION RETRIEVAL, SCIENTISTS, PROGRAMMING LANGUAGES, WEBSITES, ENGINEERS, LANGUAGES, MASKS
Six airline pilots participated in a fixed-base simulator study to determine the effects of two Horizontal Situation Display (HSD/map) panel locations relative to the Vertical Situation Display (VSD), and of three map orientations on manual piloting performance. Pilot comments and opinions were formally obtained. Significant performance differences were found between wind conditions, and among pilots, but not between map locations and orientations. The results also illustrate the potential... Topics: FRACTURE MECHANICS, FRACTURE STRENGTH, INFORMATION RETRIEVAL, STRESS ANALYSIS, TOUGHNESS
Within many areas and at various levels people are discussing the problem of information and information overflow, at the same time as the need of information is greater than ever before. This report presents the basis for developing a locally anchored I&D-system within a research organisation. Since the basic concept in information processing is "data", the processes or "events" governing the data flow within a research institute are discussed. It is also outlined in... Topics: I&D-system, local communication, psycho-ecology, scientific information retrieval
byMcClinton, C.; Rondakov, A.; Semenov, V.; Kopehenov, V
NASA has contracted with the Central Institute of Aviation Motors CIAM to perform a flight test and ground test and provide a scramjet engine for ground test in the United States. The objective of this contract is to obtain ground to flight correlation for a supersonic combustion ramjet (scramjet) engine operating point at a Mach number of 6.5. This paper presents results from a flow path performance and thermal evaluation performed on the design proposed by the CIAM. This study shows that the... Topics: INDEXING (INFORMATION SCIENCE), TEXTS, ON-LINE SYSTEMS, INFORMATION RETRIEVAL
bySomerville, Mary A.; Schader, Barbara J,; Sack, John R.
Discoverability is a popular buzzword—ultimately meaning the degree to which scholars can locate the content needed to advance their research and other creative activity. Improved user discovery experiences require heightened collaboration among (1) scholarly publishers and their published authors; (2) search engine developers, database providers, abstracting and indexing services, and academic publishers; (3) electronic resource management and integrated library system vendors; and (4)... Topics: libraries and publishing, learning and scholarship, information retrieval, electronic publishing
...results of a survey of hospitals, planning agencies, social agencies, nursing homes, mental health clinics and local health and welfare departments to determine their willingness to contribute data to a community-wide information system; detailed description of the record keeping and data collecting systems of several Boston hospitals, Blue Cross Blue Shield, the Dept. of Public Welfare and United Community Services; a copy of this item was in the BRA collection.. Topics: Medical care, Information retrieval, Social service, Public welfare
The structure and characteristics of gaseous confined laminar diffusion flames are investigated by numerically solving the time-dependent two-dimensional axisymmetric conservation equations. The numerical model accounts for the important chemical and physical processes involved, including axial diffusion, viscous effects, radial convection, and finite-rate chemistry. The numerical results clearly show that the flame has a finite thickness and leakage of fuel vapor into the flame zone is... Topics: INFORMATION RETRIEVAL, TERMINOLOGY, THESAURI, BATCH PROCESSING, NASA PROGRAMS, TRANSLATING
byChristensen, P. R.; Calvin, W. M; Wyatt, M. B.; Glotch, T. D.; Rogers, A. D.; Anwar, S.; Arvidson, R. E.; Bandfield, J. L.; Blaney, D. L.; Budney, C.
The Miniature Thermal Emission Spectrometer (Mini-TES) has provided remote measurements of mineralogy, thermophysical properties, and atmospheric temperature profile and composition of the outcrops, rocks, spherules, and soils surrounding the Spirit and Opportunity Rovers. The mineralogy of volcanic rocks provides insights into the composition of the source regions and the nature of martian igneous processes. Carbonates, sulfates, evaporites, and oxides provide information on the role of water... Topics: INFORMATION RETRIEVAL, INTERNETS, COMPUTER PROGRAMS, DATA RETRIEVAL, THESAURI
Enhanced Performance of Search Engine with Multitype Feature Co-Selection of K-Means Clustering AlgorithmInformation world meet many confronts nowadays and one such, is data retrieval from a multidimensional and heterogeneous data set. Han & et al carried out a trail for the mentioned challenge. A novel feature co-selection for web document clustering is proposed by them, which is called Multitype Features Co-selection for Clustering (MFCC). MFCC uses intermediate clustering results in one... Topics: MFCC algorithm, Search Engine, Ranking algorithm, Information Retrieval
A very small number of lunar orbiter photographs are suggested that are superior for illustrating geologic features and the principles of stratigraphy and historical geology. Only orbiter photographs are considered. Some of the Apollo pictures currently becoming available are certainly spectacular, but few are as suitable as the orbiter photographs for general geologic purposes. Reference to available Apollo photographs is included in the appendix, which also includes information on ordering... Topics: DATA PROCESSING, INFORMATION SYSTEMS, INFORMATION RETRIEVAL, TECHNOLOGY UTILIZATION
Talk given by Dr. Tzanetakis, associate professor of Computer Science at the University of Victoria, Canada about music information retrieval and content-based visualizations at Facebook on June 9th, 2011. Topics: music information retrieval, visualization, audio signal processing, machine learning
Designed to be of assistance to the new ERIC user, this glossary provides brief definitions of more than 60 terms associated with the ERIC data base and the search process. These include titles of indexes, agencies, and acronyms peculiar to ERIC as well as terms used to describe computer search strategy. A directory of ERIC network components--including the 16 clearinghouses-- is also provided. (CWM) Topics: ERIC Archive, Databases, Definitions, Glossaries, Information Networks, Information Retrieval,...
Improving Utilization of Infrastructure CloudA key advantage of Infrastructure-as-a-Service (IaaS) cloud is providing users on-demand access to resources. However, to provide on-demand access, cloud providers must either significantly overprovision their infrastructure (or pay a high price for operating resources with low utilization) or reject a large proportion of user requests (in which case the access is no longer on-demand). At the same time, not all users require truly on-demand access to... Topics: MFCC algorithm, Search Engine, Ranking algorithm, Information Retrieval
The Educational Resources Information Center (ERIC) system was used to identify 1,734 documents on program evaluation methodology. Attempts to further characterize these documents by subject were only partially successful because of the lack of sufficient depth of indexing and design constraints of the computer system. Attempts to characterize these documents by type of publication were also unsuccessful because so many of the documents had not been assigned publication type codes. When... Topics: ERIC Archive, Bibliographies, Databases, Evaluation, Evaluation Methods, Indexing, Information...
Formal proofs are given of the effectiveness under well-defined conditions of the thesaurus method in information retrieval. It is shown, in particular, that when certain semantically related terms are added to the information queries originally submitted by the user population, a superior retrieval system is obtained in the sense that for every level of the recall the retrieval precision is at least as good for the altered queries as for the original one. (Author) Topics: ERIC Archive, Automatic Indexing, Information Retrieval, Information Storage, Mathematical Models,...
This study conducted to determine representation impact on information items retrieval in terms of precision and recall performance and overlap used the INSPEC "Computers and Control Abstracts" loaded on DIATOM, an online retrieval system based on DIALOG, as the database to be searched. Sixty-nine users provided 84 queries which were searched for high recall by intermediaries under each of seven representations: title only, abstract only, descriptors, identifiers, title and abstract,... Topics: ERIC Archive, Analysis of Variance, Databases, Information Retrieval, Models, Online Systems,...
The development of an automatic indexing technique, called Double KWIC (DKWIC) Coordinate Indexing, is described which extends the KWIC indexing principles to provide easy access to an additional level of specificity for information indexed under these frequently appearing terms. Chapter 2 discusses indexing terminology and some fundamental relationships between indexing and document retrieval. Chapter 3 sketches a brief history of automated indexes describing frequently encountered methods of... Topics: ERIC Archive, Automatic Indexing, Coordinate Indexes, Indexes, Indexing, Information Retrieval,...
Revised to reflect changes in both DIALOG and ERIC, this second edition of a self-improvement manual for online searchers who wish to refine their skills presents three basic approaches to searching and provides illustrations from DIALOG's ERIC ONTAP database. The manual is divided into two parts: an 8-step model of the total search process which emphasizes the effects of the searcher's decisions on retrieval results and search objectives, and an introduction to DIALOG's ERIC ONTAP file... Topics: ERIC Archive, Databases, Independent Study, Information Retrieval, Library Education, Models,...